Regulator and indicator for furnace-drafts.



D. T. KOCH.

1,200,952. Patented Oct. 10,1916. M l7 *1 6 /6 M i 4 n9 DENNIS T. 'KOCH, .0F AKBGN, .OI-IIO.

REGULATOR aAN'D INDICATOR .EOR 'iFURNACE-DRAFTS.

Specification ofiLet-tersllatent.

-Patented0ct. 1 0, 1916.

ApplicationfiledMarch 22;1916. Serial N0'."85,'881.

To all whom it may concern Be it known that I, DENNIS T. KOCH, a citizen of the United States, residing at Akron, in ,the county of Summit, State of Ohio, have invented a new and useful Regulator and Indicator for "Furnace-Drafts; and I do hereby declare the "following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use. the same.

This invention relates to the art of draft regulators and indicators, and more especially to the kind disposed remote from the furnace draft, say for instance upon the first or second floor of the building or both, and an object of the invention is to provide an improved, simple and efficient device, whereby an operator may regulate the draft from the first or second floor of a building, with as much ease and accuracy, as if in the furnace room.

Another object of the invention is to provide improved means for frictionally holding the regulator, after having once been adjusted.

In practical fields the details of construction may necessitate alterations, falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings: Figure 1 is a View partly in elevation and partly in section illustrating the relative positions of the first and second floors of a building, and showing an outline of the conventional furnace, illustrating the regulator and its connections with the draft means of the fur nace, whereby the draft means may be controlled at remote locations therefrom. Fig. 2 is an enlarged view in elevation of the regulator, showing the indicating means. Fig. 3 is a sectional view on line 3--3 of Fig. 2. Fig. i is a rear view of the regulator.

Referring more especially to the drawings, 1 designates a casing, which may be constructed of any suitable sheet metal, and

located at any suitable point upon either the first or second floor of the building, or upon both floors, and for the purpose of illustration as in'Fig. 1 there are two regulators shown. This casing is provided at its rear with a downwardly depending arm 2. Journaled 1n bearlngs of the casing and tate with the shaft, sprocket (which is provided with large teeth) a sprocket chain l enga'ges. lower partofthe sprocket chain engages the sprocket 5 upon the draft closure '6 of its rear-arm 2 of'each regulator is a shaft :2, on which a sprocket 3 is mounted to roand about which The the furnace 7. Upon one face of the sprocket 3 an annular shoulder 8 is formed,

with which a spring detent 9 (which is fastened at 10 to one side of the casing) engages, to hold the sprocket, when once having been adjusted. A set screw 11 is threaded through one of the side edge walls of the casing, so that its extremity 12 will bear against the spring detent, for regulating the extent of frictional engagement upon the annular shoulder. Fixed to rotate with one end of the shaft 2 is an indicator or pointer 13, one end let of which cooperates with adjacent graduations 15 (which indicate the closed, partial, and complete open positions of the draft closure of the furnace), whereas the other end of the indicator is provided with a crank handle 15% whereby the indicator and the sprocket wheel 3 may be rotated as one body, to open or close the draft closure. Upon the front face of the casing at diametrically opposite points stop lugs 16 and 17 are provided, to be engaged by the shank 18 of the indicator, to limit the draft closure to open or closed positions. The casing of the regulator upon the first floor, as shown in Figs. 3 and 4:, has its upper and lower walls provided with openings 19 and 20, to permit the opposite portions of the sprocket chain to pass therethrough, to the sprocket wheel of the casing of the regulator upon the second floor.

The indicator of either one of the regulators ofeither floor may be manipulated to operate the draft closure, and when installing this system each of the indicators is disposed at its closed position, and a draft closure is likewise arranged in closed position, after which the sprocket chain is applied. The chain 4 of the uppermost indicator is connected by the wire rods 4 to the sprocket chain 5*, which passes about the sprocket 5 of the damper 6. The chain 4, of the other indicator is also provided with wire rod connections P to the sprocket chain 5. By this arrangement and construction, either one of the indicators may be manipulated to actuate the damper 6.

The invention having been set forth, what is claimed as new and useful is:

In a multiple regulator for a damper, the combination of a casing having a pair of openings at the'top adjacent the side edges of the casing, said casing having a pair of openings in its bottom adjacent the side edges of the casing, and having a downwardly depending arm at the rear and a shaft mounted in bearings of the casing and said'arm, ofa sprocket journaled on and to rotate with said shaft and provided with an annular shoulder upon one face, a sprocket chain passing over the sprocket and having means of connection to said damper, whereby as the shaft is rocked in one direction orthe other the damper may be opened or closed, said openings constituting means through which connections between said damper and a second indicator 1 may pass, and adjustable means frictionally bearing upon said shoulder for holding the DENNIS T. KOCH.

Witnesses A. J; Annns, t

BERTHA GERMAN.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents,

' r Washington, D. C. r 

